Attempt 2 at:

chrome/browser/views/tabs/tab_strip_interactive_uitest.cc

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/message_loop.h"
+#include "chrome/browser/automation/ui_controls.h"
+#include "chrome/browser/browser.h"
+#include "chrome/browser/browser_window.h"
+#include "chrome/browser/view_ids.h"
+#include "chrome/browser/views/tabs/base_tab.h"
+#include "chrome/browser/views/tabs/tab_strip.h"
+#include "chrome/common/url_constants.h"
+#include "chrome/test/in_process_browser_test.h"
+#include "chrome/test/ui_test_utils.h"
+#include "views/widget/root_view.h"
+#include "views/widget/widget.h"
+
+typedef InProcessBrowserTest TabStripTest;
+
+// Creates a tab, middle clicks to close the first, then clicks back on the
+// first. This test exercises a crasher in the mouse near code path.
+IN_PROC_BROWSER_TEST_F(TabStripTest, Close) {
+  int initial_tab_count = browser()->tab_count();
+
+  browser()->AddTabWithURL(
+      GURL(chrome::kAboutBlankURL), GURL(), PageTransition::TYPED, -1,
+      Browser::ADD_SELECTED, NULL, std::string());
+  views::RootView* root =
+      views::Widget::FindRootView(browser()->window()->GetNativeHandle());
+  ASSERT_TRUE(root);
+  TabStrip* tab_strip =
+      static_cast<TabStrip*>(root->GetViewByID(VIEW_ID_TAB_STRIP));
+  ASSERT_TRUE(tab_strip);
+
+  // Force a layout to ensure no animations are active.
+  tab_strip->Layout();
+
+  // Close the first tab by way of am middle click.
+  BaseTab* tab1 = tab_strip->base_tab_at_tab_index(1);
+  ui_controls::MoveMouseToCenterAndPress(
+      tab1, ui_controls::MIDDLE, ui_controls::DOWN | ui_controls::UP,
+      new MessageLoop::QuitTask());
+
+  // Force a layout to ensure no animations are active.
+  ui_test_utils::RunMessageLoop();
+
+  EXPECT_EQ(initial_tab_count, browser()->tab_count());
+
+  // Force a layout to ensure no animations are active.
+  tab_strip->Layout();
+
+  // Click on the first tab.
+  BaseTab* tab0 = tab_strip->base_tab_at_tab_index(0);
+  ui_controls::MoveMouseToCenterAndPress(
+      tab0, ui_controls::LEFT, ui_controls::DOWN | ui_controls::UP,
+      new MessageLoop::QuitTask());
+
+  ui_test_utils::RunMessageLoop();
+}